HTWL series elbow flowmeter is a new generation of new concept differential pressure flow measurement system designed and manufactured according to the theory of fluid mechanics and dynamics. The elbow flowmeter is widely used in the measurement of liquids, gases, and steam in industries such as metallurgy, chemical engineering, thermoelectricity, textiles, pharmaceuticals, petroleum, natural gas, papermaking, tobacco, food processing, and heat, and can be directly connected to the DCS system. The industrial site can be used as a measuring device for long-term monitoring of flow. The elbow flowmeter is mainly composed of elbow sensors, special instruments or DCS systems, differential pressure transmitters and some pipeline valve components. When the flow measurement requires temperature and pressure compensation, it should also be equipped with pressure transmitters, temperature transmitters, Temperature Sensor.

The basic characteristics of the elbow flowmeter:

1, no additional resistance loss elbow sensor is machined, cast or otherwise processed by the geometric structure of the precision of the ninety-degree standard elbow, in the actual flow measurement work, as long as the elbow sensor to replace the original pipe The elbow can make flow measurements. Because the elbow sensor does not have any inserts or throttles, it will not cause additional resistance loss to the measured fluid during the measurement process, which can save the power consumption of the fluid transport and reduce the operating cost. For those systems with low pressure and large diameter, The application of large flow has a special meaning of use.

2, easy installation, wear resistance, maintenance-free As a measuring element of the elbow sensor can be installed directly on the pipe using a direct welding method, once the welding is completed and there is no leakage and other headaches, this is the elbow sensor Maintenance-free features. It should be emphasized that the bend tube sensor can be installed by welding. The premise is that the bend tube sensor is insensitive to wear, and the long-term trace wear has little effect on the measurement performance of the bend tube sensor. This is related to the welded orifice plate. There is a fundamental difference.

3, strong adaptability, a wide range of measuring range, straight pipe section requirements are not strict elbow flow meter can measure liquid, steam, gas and other fluid media. Liquids include: cold water, hot water, sewage, gasoline, diesel, kerosene, residual oil, liquid ammonia, liquid benzene, liquid bromine, etc.; steam includes: saturated steam, superheated steam; gas includes: blast furnace gas, coke oven gas, mixed gas , air, hydrogen, nitrogen, oxygen, carbon monoxide, carbon dioxide, acetylene, natural gas, etc. The elbow sensor can be normally used in high-temperature, high-pressure, dust, vibration, humidity and other environments with poor installation conditions. For example, bent-pipe sensors made of corrosion-resistant materials (eg stainless steel, engineering plastics, glass, ceramics, etc.) can measure the flow of various corrosive media. The wide range of bend sensor includes the following two aspects, it applies to DN10-DN300mm diameter change; wide temperature range: -50-600 °C; pressure range: 0-32MPa; wide range ratio: 1:10, to meet the two-way measurement It can be applied to the media in the pipeline flow rate of 0.2-12 m / s (measurement of liquid media) and 3-160 m / s (measurement of steam or gas medium) wide range, and can meet the measurement accuracy requirements . The low straight pipe section requirements also belong to the category of strong adaptability. The first five (5D) second two (2D) can fully meet the requirements of the straight pipe section, and even reduce the requirements when necessary, and the measurement system can also reach quite high levels. The accuracy of the measurement, V-type sensor has been equipped with a straight pipe before and after the installation site has no straight pipe requirements. The elbow sensor can be installed horizontally, vertically, and freely turning. S-type and V-type sensors can be mounted on any straight pipe.

4, the price is moderate, long service life Due to the simple structure of the elbow sensor, easy to mass production, its price is almost the same as other types of flow sensor, and the larger the diameter, the lower the price; due to its temperature, pressure, resistance Corrosion, wear resistance, vibration resistance, and trace wear have little effect on the measurement accuracy of the sensor, so the sensor life and pipe life are the same.

5, high measurement accuracy, good reproducibility Elbow flowmeter system measurement accuracy of up to 1%, repeatability accuracy is as high as 0.2%. Since the elbow tube sensor is installed once, it does not need to be repeatedly assembled and disassembled, so its installation accuracy can also be best guaranteed.